Non-contacting signal transmission measurement and modeling by coupling theory

In this paper, the key point is how to use the loop to couple the signal from DUT. The traditional contacting probe has various disadvantages, such as low-mobility, high-cost, high damaged rate, etc. As a result, we design a high-mobility, well reproducibility, low-cost and broadband CPW square loop-type probe to couple the signal from DUT. Also, the radiation model is extracted by coupling theorem and compared with 3-D EM simulation. The results show the good performance with the model. Thus, it can not only propose the non-contacting measurement but also can be applied to the popular issues of EMI and EMC in the future.